== Measuring the Speed of Light ==

[https://ghz.unm.edu/education/juniorlab_pdfs/experimentprocedures/speedoflightv2p0.pdf Instructions PDF]

[https://ghz.unm.edu/education/juniorlab_pdfs/tds400_cursor.pdf TDS400 Taking Cursor Measurements]

== Background Reading ==

[https://www.aps.org/programs/outreach/history/historicsites/michelson-morley.cfm The Michelson-Morley Experiment]

== History ==

Dec 2019 - Experiment set up in PAIS 1417 and verified by Mike Hasselbeck

Feb 2020 - Taken down and moved to PAIS 1405, along with long optics table

March 2020 - Set up again by Zac Castillo, and revised setup design to make alignment easier

Dec 2020 - Set up again by Youngwoo Yi, with revised setup ([https://ghz.unm.edu/education/juniorlab_pdfs/experimentprocedures/speedoflight_revisedsetup.pdf compared here])

Feb 2021 - Data taking with new setup successfully completed in 1 lab session by junior lab students

== Notes ==

Can be done in one session if optical setup and alignment is done ahead of time

Balmer Series

2021-03-23T14:40:42Z

Juniorlab admin:

== Measuring the Balmer Series ==

[https://ghz.unm.edu/education/juniorlab_pdfs/experimentprocedures/balmerseries.pdf Instructions PDF]

== Background Reading ==

== History ==

Feb 2020: Marked some bulbs as contaminated, but keep at least one to show what contamination looks like

Jan 2021: New sodium bulb purchased. Dr. Yi notes that it requires some time (~ 1 min) to heat up to see all lines, since it is in solid state at room temperature.

Feb 2021: Already see some blackened areas on inside of new sodium bulb, some faint contamination seen on spectrum

Feb 2021: Mis-seated or failing bulb caused damage to the lamp housing, melting plastic on one end. This also burnt out the mercury bulb. Switched to spare mercury bulb, need to replace.

March 2021: New lamp purchased, along with new mercury bulbs for calibration.

March 2021: Red mercury line is much more diffuse and dim, possibly due to alignment of prism

== Notes ==

This experiment is light sensitive and is best set up in an area that can be darkened.

Almost all the bulbs can only be on for 30 seconds, and then must be turned off for 30 seconds, to avoid damaging the bulb.
There is an automatic outlet timer to make this easier.

The red line of mercury can be very dim or invisible depending on the alignment of the prism.

Planck's Constant

2021-03-23T14:14:58Z

Juniorlab admin:

Balmer Series

2021-03-23T14:13:57Z

Juniorlab admin: /* History */

Poisson Statistics

2021-03-23T14:12:29Z

Juniorlab admin: /* History */

Compton Scattering

2021-03-22T23:10:12Z

Juniorlab admin:

== Compton Scattering ==

[https://ghz.unm.edu/education/juniorlab_pdfs/experimentprocedures/comptonscattering.pdf Instructions PDF]

[https://ghz.unm.edu/education/juniorlab_pdfs/ucs30_manual.pdf UCS30 Manual]

==Background==
The Compton Effect (1922) demonstrates that massless photons possess momentum as well as quantized energy. Photon momentum and energy can be transferred to a stationary electron of mass m in an inelastic collision. Special relativity and quantum mechanics are essential to explain the change in frequency (equivalently wavelength) of
the scattered photon and the motion of the electron.

Compton scattering is derived using conservation of energy and momentum, where the energy and momentum of a photon of frequency ν are taken as hν and hν/c, respectively. The rest energy of the electron is mc2 and it is assumed to have zero momentum prior to its interaction with the photon.

To observe the effect, photons with energies comparable to the electron rest energy mc2 are required. The needed high energy photons are found in the gamma-ray portion of the electromagnetic spectrum. A variety of radioactive isotopes spontaneously emit the appropriate gamma-rays and are used in this experiment. Because their energy is so high, it is difficult to detect gamma-rays directly. Indirect detection is used here through a process called scintillation. A scintillator is a special material – in this case a
sodium iodide (NaI) crystal – that converts high-energy photons such as gamma-rays into visible photons that can be detected. The NaI scintillation crystal is directly attached to a photo-multiplier tube (PMT) that is sensitive enough to resolve very few visible photons. Detected photons appear as voltage pulses at the output of the PMT. The height of the voltage pulse is directly proportional to the energy of the gamma-ray that created it.

A multi-channel analyzer (MCA) measures the distribution of the PMT voltage pulses. By mapping the height of each pulse into a corresponding bin (x-axis on its display), the MCA produces a spectrum of the gamma-ray photons that strike the scintillator. The combination of scintillation, PMT, and MCA forms a gamma-ray spectrometer.
There are many possible interactions that occur when gamma-rays collide with a scintillator, but the two most relevant for this experiment are photo-electric absorption and Compton scattering. In photo-electric absorption, a gamma-ray liberates a bound electron from the scintillator crystal. This highly energetic electron travels through the NaI giving up its kinetic energy in collisions with other atoms along the path. These excitations relax back to the ground state by emitting visible photons. The more kinetic energy the electron possesses, the further it travels, the more photons are emitted, and the larger the voltage pulse at the output of the PMT. Although many visible
photons are emitted, each voltage pulse corresponds to a single gamma-ray event. The gamma-rays irradiate the scintillator at a low enough rate that they can be individually distinguished. It is important to understand that the PMT cannot detect gamma-ray photons. It only detects visible photons that result from the dissipation of kinetic energy of fast moving electrons in the scintillator.

Although multiple visible photons are produced by a single-gamma ray, the detected photon count can vary even though the gamma-ray photon energy does not change. This results in a statistical (Gaussian) distribution in the spectrometer bins. The spectrometer does not display a δ-function, but a broad peak having a width that reflects this distribution.

The primary difference between Compton scattering and photo-electric absorption is in the amount of energy transferred. In the photo-electric interaction, an electron is ionized with kinetic energy almost identical to the gamma-ray. In Compton scattering, there is a continuum of energies that can be exchanged, ranging from 0 to 100% of the incident gamma-ray energy. This arises from the angle-dependence in Equation (1). Energy is partitioned between the electron that is struck and
the scattered photon. The maximum energy an electron can acquire in Compton scattering occurs at θ = 180◦ , in which it directly recoils from a head-on collision. This produces the minimum possible scattered photon energy:

In photo-electric absorption, the MCA gives a direct measure of the gamma-ray photon energy. In Compton scattering, the MCA measures the energy of the recoiling electron, not the incident or scattered photon.

==Experiment==
The MCA x-axis is calibrated with a known radioactive source such as Cs-137. Characteristic features can be identified in the spectrum. A prominent peak at 662 keV appears
due to direct electron ionization by a Cs-137 gamma-ray. This interaction is entirely due to photoelectric absorption and produces the photo-peak. Compton scattering results in a smooth continuum of energy counts ranging from 0 eV to ∆Emax. The maximum energy from Compton scattering (the Compton edge) is due to the recoil of electrons
involved in head-on collisions. The photons emitted by these recoiling electrons must have lower energy than the photo-peak according to Equation (4). The Compton edge can be difficult to distinguish in the spectrum. It is taken as the halfway point between the rolloff shoulder and noise floor. It can be used to find the electron rest mass energy with Equation (4).

The Compton edge is associated with a minimum scattered photon energy as given by Equation (3). This backscattered photon cannot be directly detected by the PMT because its energy is too high, but it can interact with the scintillator by photo-electric absorption. The scattered photon generates a trail of electron ionization in the scintillator, the emission of many visible photons, and a prominent low energy peak in the MCA spectrum called the backscatter peak. Because this peak is produced by photo-electric absorption, the scattered gamma-ray photon energy is measured. The backscatter peak is superimposed on the Compton scattering continuum. Unlike the high-energy
photo-peak which involves no Compton scattering, the backscatter peak is from a photon produced in a head-on Compton scattering event. The energy of the backscatter peak can be used to solve for the electron rest energy through Equation (3). The Compton edge and backscatter peak provide two independent determinations of the electron
rest energy through Equations (3) and (4). Different gamma-ray sources have different energies hν resulting in different spectra and additional data.

==Equipment and Setup==

To get clean data, the PMT/scintillator and radioactive source must be shielded inside a lead brick enclosure. Use caution when moving the bricks as they are very heavy.
Radioactive sources are stored in a locked box. Ask the instructor for access. The MCA is a model UCS30 with accompanying GUI software and user manual. Referring to the
user manual will make setup and data taking easier. The most critical aspect of setup is the PMT high-voltage setting. The polarity and maximum voltage will be marked on the PMT (typically +1200V). Please have your setup confirmed by an instructor before enabling high-voltage. The MCA communicates with a host PC via USB. It biases the PMT using a special BNC cable with high voltage connectors. Never force a BNC cable onto a non-mating connector. A second BNC cable feeds the output of the PMT to the MCA, where pulses are appropriately amplified, conditioned, and counted.

Place a 1 µCi Cs-137 source next to the scintillator. You may have to experiment with its height and orientation to get the best data. Quick-start for the UCS-30 is as follows. From the menu bar, select Spectrum: Connect to Device and Mode: Pulse Height Analysis (Preamp-in). In the main menu, set the High Voltage to 600V and click the OFF button to turn the HV ON. Under Settings select Amp/HV/ADC. Set Conversion Gain at 1024; Coarse Gain: 8; Fine Gain: 1. Press the run button. You should start getting counts; adjust the HV to put the photo-peak in the approximate middle of the display. You will have to clear the display each time you make changes to the settings. When setup is adjusted to your
satisfaction, record the bin corresponding to the Cs-137 photo-peak. Keyboard arrows can help in fine positioning of the cursor. Replace the Cs-137 with the other available sources and record the bin numbers associated with their photo-peaks. Calibration data for several radioactive sources can be found in this table:
{|class=wikitable style=text align:center
|-
! Sample
! Energy
! Half life
|-
| Cs-137|| 662 keV || 30.2 yr ||
|-
| Co-60 || 1.173 MeV; 1.33 MeV || 5.3 yr ||
|-
| Na-22 || 511 keV; 1.275 MeV || 2.6 yr||
|-
| Ba-133|| 356 keV || 10.5 yr ||
|-
| Mn-54 || 835 keV || 303 day ||
|-
| Cd-109 || 88 keV || 453 day ||
|-
| Co-57 || 122 keV || 270 day ||
|}

You may also get sum peaks at higher energies. Plot the photo-peak energy vs the bin number and attempt to make a linear, least-squares fit. This line will be your calibration curve; do not use the auto-calibrate function of the spectrometer. Replace the Cs-137 source and measure the full-width, half-maximum of the photo-peak. Report
this value in energy using the calibration curve.

Measure the Compton edge and backscatter peak for as many sources as possible. Use these to calculate the electron rest energy and rest mass. Be sure to include the uncertainties in your reported values.

Is the half-height energy the best estimate for the Compton edge? Which of the two peaks produce
better results and why?

Why do backscatter photons produce a peak instead of a much broader continuum?

Schedule Spring 2021

2021-03-22T03:08:53Z

Juniorlab admin: /* Course Schedule */

== Schedule of Experiments ==

{| class="wikitable"
|+ Experiment Schedule
|-
|Date
|Section 1 (Monday)
|Section 2 (Tuesday)
|Notes
|-
|''Jan 18''
|
|
| ''MLK Day''
|-
|Jan 25
| Oscilloscope: Yankang, Kevin, Carter
Chua Circuit Pt 1: Adam, Wesley
| Oscilloscope: Erika, Nicholas
Chua Circuit Pt 1: Ben
| '''Lab notebook due Feb 5'''
|-
|Feb 1
| '''IN-PERSON'''
''[[Speed of Light]]:'' Adam

''[[Poisson Statistics]]:'' Wesley

'''REMOTE'''

''[[Chuas Circuit]] Short:'' Yankang, Kevin, Carter
| '''IN-PERSON'''

''[[Speed of Light]]:'' Ben

''[[Balmer Series]]:'' Erika

'''REMOTE'''

''[[Chua Circuit]] Short:'' Nicholas
| Lab notebook due Wed Feb 10
|-
|Feb 8
| '''IN PERSON'''

''[[Balmer Series]]'': Carter

''[[Poisson Statistics]]'': Kevin

''[[Speed of Light]]'': Yankang

'''REMOTE'''

''[[Chua Circuit]] Pt 2'': Adam, Wesley

| '''IN PERSON'''

''[[Balmer Series]]'':

''[[Poisson Statistics]]'':

''[[Speed of Light]]'': Nicholas

'''REMOTE'''

''[[Chua Circuit]] Short'': Erika

''[[Chua Circuit]] Pt 2'': Ben

| Lab notebook due Wed Feb 17
|-
|Feb 15
| '''IN PERSON'''

''[[Balmer Series]]'': Wesley

''[[Poisson Statistics]]'': Adam

''[[Speed of Light]]'': Carter

'''REMOTE'''

''[[Poisson Statistics Pt 2]]'': Kevin

''[[Speed of Light Pt 2]]'': Yankang

| '''IN PERSON'''

''[[Balmer Series]]'': <s>Ben</s>

''[[Poisson Statistics]]'': <s>Erika</s>

''[[Speed of Light]]'':

'''REMOTE'''

''[[Speed of Light Pt 2]]:'' Nicholas, <ins>Ben</ins>

| Lab notebook due Wed Feb 24.

Re-arranged schedule due to snow day for Tuesday session
|-
|Feb 22
| '''IN PERSON'''

''[[Balmer Series]]'': Adam

''[[Poisson Statistics]]'': Yankang

''[[Speed of Light]]'': Kevin

'''REMOTE'''

''[[Poisson Statistics Pt 2]]'': Wesley

''[[Speed of Light Pt 2]]'': Carter

| '''IN PERSON'''

''[[Balmer Series]]'': <ins>Ben</ins>

''[[Poisson Statistics]]'': Nicholas

''[[Speed of Light]]'': <ins>Erika</ins>

'''REMOTE'''

''[[Poisson Statistics Pt 2]]:'' <s>Erika</s>

''[[Speed of Light Pt 2]]:'' <s>Ben</s>

| Lab notebook due Wed Mar 3
|-
|Mar 1
| '''IN PERSON'''

''[[Balmer Series]]'': Kevin

''[[Poisson Statistics]]'': Carter

''[[Speed of Light]]'': Wesley

'''REMOTE'''

''[[Poisson Statistics Pt 2]]:'' Adam, Yankang

''[[Speed of Light Pt 2]]:''

| '''IN PERSON'''

''[[Balmer Series]]'':

''[[Poisson Statistics]]'': Ben

''[[Speed of Light]]'': <s>Erika</s>

'''REMOTE'''

''[[Poisson Statistics Pt 2]]:'' Nicholas

''[[Speed of Light Pt 2]]:'' <ins>Erika</ins>

| Lab notebook due Wed Mar 10
|-
|Mar 8
| '''IN PERSON'''

''[[Balmer Series]]'': Yankang

''[[Poisson Statistics]]'': <ins>Erika</ins>

''[[Speed of Light]]'':

'''REMOTE'''

''[[Poisson Statistics Pt 2]]:'' Carter

''[[Speed of Light Pt 2]]:'' Adam, Kevin, Wesley

| '''IN PERSON'''

''[[Balmer Series]]'': Nicholas

''[[Poisson Statistics]]'':

''[[Speed of Light]]'':

'''REMOTE'''

''[[Poisson Statistics Pt 2]]:'' Ben, <ins>Erika</ins>

''[[Speed of Light Pt 2]]:'' <s>Erika</s>

| Lab notebook due Wed Mar 24 (after spring break)
|-
|''Mar 15''
| All experiments in person after spring break
|
| '' Spring Break''
|-
|Mar 22
| [[Compton Scattering]]: Adam

[[Electron Diffraction]]: Kevin

[[Ratio of e/m]]: Wesley

[[Planck's Constant]]: Yankang

[[Electron Spin Resonance]]: Carter

| [[Compton Scattering]]: Erika

[[Electron Diffraction]]: Nicholas

[[Franck-Hertz]]: Ben
| Compton Scattering and Electron Diffraction will be shared between sections.
Electron Diffraction, Ratio of e/m, and Planck's constant are all light-sensitive.
|-
|Mar 29
| Same as Mar 22
| Same as Mar 29
|
|-
|Apr 5
| [[Compton Scattering]]: Yankang

[[Electron Diffraction]]: Carter

[[Ratio of e/m]]: Adam

[[Franck-Hertz]]: (Wesley)

[[Electron Spin Resonance]]: (Kevin)
| [[Compton Scattering]]: Nicholas

[[Electron Diffraction]]: (Ben)

[[Planck's Constant]]: Erika
| Compton Scattering and Electron Diffraction will be shared between sections.
Names in (parentheses) are tentative.

[[Acoustic Impedance Spectroscopy]] and [[Charge of the Electron]] may also be available by Apr 5.

|-
|Apr 12
| Same as Apr 5
| Same as Apr 5
|
|-
|Apr 19
|
|
|
|-
|Apr 26
|
|
|
|-
|May 3
|
|
|
|-
|May 10
|
|
| ''Finals Week''
|}

== Course Schedule ==

{| class="wikitable"
|+
|-
|Date
|Lecture
|Assignments
|Notes
|-
|''Jan 18''
| none
|
| ''MLK Day''
|-
|Jan 25
| [https://ghz.unm.edu/education/juniorlab_pdfs/lectures_sp2021/lecture01.pdf Lecture 1]
| Read syllabus, complete pre-class survey and [[Required_Safety_Trainings]]
|
|-
|Feb 1
| [https://ghz.unm.edu/education/juniorlab_pdfs/lectures_sp2021/lecture02.pdf Lecture 2]
| Read through [https://ghz.unm.edu/education/juniorlab_pdfs/labnotebook_gradingrubric.pdf lab notebook grading rubric], example lab notebooks (links in lecture), review [https://ghz.unm.edu/education/juniorlab_pdfs/uncertainty.pdf Uncertainty from Physics 1]
|
|-
|Feb 8
| [https://ghz.unm.edu/education/juniorlab_pdfs/lectures_sp2021/lecture03.pdf Lecture 3]
|
|
|-
|Feb 15
| [https://ghz.unm.edu/education/juniorlab_pdfs/lectures_sp2021/lecture04.pdf Lecture 4]
| Sign up for first talk with date and topic
|
|-
|Feb 22
| [https://ghz.unm.edu/education/juniorlab_pdfs/lectures_sp2021/lecture05.pdf Lecture 5]
| Read through lab report guidelines
|
|-
|Mar 1
| Ben (Balmer Series)

Carter (Balmer Series)

Yankang (Speed of Light)

Kevin (Poisson Statistics)

[https://ghz.unm.edu/education/juniorlab_pdfs/lectures_sp2021/lecture06.pdf Lecture 06]

| Email with choices for first advanced lab by Friday March 5 at noon
|
|-
|Mar 8
| Erika (Balmer Series)

Wesley (Balmer Series)

Adam (Balmer Series)

Nicholas (Speed of Light)

[https://ghz.unm.edu/education/juniorlab_pdfs/lectures_sp2021/lecture07.pdf Lecture 7]
|
|
|-
|''Mar 15''
|
|
| '' Spring Break''
|-
|Mar 22
|
|
|
|-
|Mar 29
|
| Lab Report 1 due Wed, Mar 31 by noon
|
|-
|Apr 5
|
| Lab notebook for lab 8 due Wed, Apr 7 by noon
|
|-
|Apr 12
|
|
|
|-
|Apr 19
| Talk 2
| Lab notebook for lab 9 due Wed, Apr 21 by noon
|
|-
|Apr 26
| Talk 2
| Lab report 2 due Wed, Apr. 28 by noon
|
|-
|May 3
|
| Lab notebook for lab 10 due Wed, May 5 by noon
|
|-
|May 10
| Talk 3 for all students during scheduled finals time: Friday, May 14, 12:30-2:30pm
| Lab Report 3 due Wed, May 12 by 12pm
| ''Finals Week''
|}

Schedule Spring 2021

2021-03-10T20:52:47Z

Juniorlab admin: /* Schedule of Experiments */

== Schedule of Experiments ==

{| class="wikitable"
|+ Experiment Schedule
|-
|Date
|Section 1 (Monday)
|Section 2 (Tuesday)
|Notes
|-
|''Jan 18''
|
|
| ''MLK Day''
|-
|Jan 25
| Oscilloscope: Yankang, Kevin, Carter
Chua Circuit Pt 1: Adam, Wesley
| Oscilloscope: Erika, Nicholas
Chua Circuit Pt 1: Ben
| '''Lab notebook due Feb 5'''
|-
|Feb 1
| '''IN-PERSON'''
''[[Speed of Light]]:'' Adam

''[[Poisson Statistics]]:'' Wesley

'''REMOTE'''

''[[Chuas Circuit]] Short:'' Yankang, Kevin, Carter
| '''IN-PERSON'''

''[[Speed of Light]]:'' Ben

''[[Balmer Series]]:'' Erika

'''REMOTE'''

''[[Chua Circuit]] Short:'' Nicholas
| Lab notebook due Wed Feb 10
|-
|Feb 8
| '''IN PERSON'''

''[[Balmer Series]]'': Carter

''[[Poisson Statistics]]'': Kevin

''[[Speed of Light]]'': Yankang

'''REMOTE'''

''[[Chua Circuit]] Pt 2'': Adam, Wesley

| '''IN PERSON'''

''[[Balmer Series]]'':

''[[Poisson Statistics]]'':

''[[Speed of Light]]'': Nicholas

'''REMOTE'''

''[[Chua Circuit]] Short'': Erika

''[[Chua Circuit]] Pt 2'': Ben

| Lab notebook due Wed Feb 17
|-
|Feb 15
| '''IN PERSON'''

''[[Balmer Series]]'': Wesley

''[[Poisson Statistics]]'': Adam

''[[Speed of Light]]'': Carter

'''REMOTE'''

''[[Poisson Statistics Pt 2]]'': Kevin

''[[Speed of Light Pt 2]]'': Yankang

| '''IN PERSON'''

''[[Balmer Series]]'': <s>Ben</s>

''[[Poisson Statistics]]'': <s>Erika</s>

''[[Speed of Light]]'':

'''REMOTE'''

''[[Speed of Light Pt 2]]:'' Nicholas, <ins>Ben</ins>

| Lab notebook due Wed Feb 24.

Re-arranged schedule due to snow day for Tuesday session
|-
|Feb 22
| '''IN PERSON'''

''[[Balmer Series]]'': Adam

''[[Poisson Statistics]]'': Yankang

''[[Speed of Light]]'': Kevin

'''REMOTE'''

''[[Poisson Statistics Pt 2]]'': Wesley

''[[Speed of Light Pt 2]]'': Carter

| '''IN PERSON'''

''[[Balmer Series]]'': <ins>Ben</ins>

''[[Poisson Statistics]]'': Nicholas

''[[Speed of Light]]'': <ins>Erika</ins>

'''REMOTE'''

''[[Poisson Statistics Pt 2]]:'' <s>Erika</s>

''[[Speed of Light Pt 2]]:'' <s>Ben</s>

| Lab notebook due Wed Mar 3
|-
|Mar 1
| '''IN PERSON'''

''[[Balmer Series]]'': Kevin

''[[Poisson Statistics]]'': Carter

''[[Speed of Light]]'': Wesley

'''REMOTE'''

''[[Poisson Statistics Pt 2]]:'' Adam, Yankang

''[[Speed of Light Pt 2]]:''

| '''IN PERSON'''

''[[Balmer Series]]'':

''[[Poisson Statistics]]'': Ben

''[[Speed of Light]]'': <s>Erika</s>

'''REMOTE'''

''[[Poisson Statistics Pt 2]]:'' Nicholas

''[[Speed of Light Pt 2]]:'' <ins>Erika</ins>

| Lab notebook due Wed Mar 10
|-
|Mar 8
| '''IN PERSON'''

''[[Balmer Series]]'': Yankang

''[[Poisson Statistics]]'': <ins>Erika</ins>

''[[Speed of Light]]'':

'''REMOTE'''

''[[Poisson Statistics Pt 2]]:'' Carter

''[[Speed of Light Pt 2]]:'' Adam, Kevin, Wesley

| '''IN PERSON'''

''[[Balmer Series]]'': Nicholas

''[[Poisson Statistics]]'':

''[[Speed of Light]]'':

'''REMOTE'''

''[[Poisson Statistics Pt 2]]:'' Ben, <ins>Erika</ins>

''[[Speed of Light Pt 2]]:'' <s>Erika</s>

| Lab notebook due Wed Mar 24 (after spring break)
|-
|''Mar 15''
| All experiments in person after spring break
|
| '' Spring Break''
|-
|Mar 22
| [[Compton Scattering]]: Adam

[[Electron Diffraction]]: Kevin

[[Ratio of e/m]]: Wesley

[[Planck's Constant]]: Yankang

[[Electron Spin Resonance]]: Carter

| [[Compton Scattering]]: Erika

[[Electron Diffraction]]: Nicholas

[[Franck-Hertz]]: Ben
| Compton Scattering and Electron Diffraction will be shared between sections.
Electron Diffraction, Ratio of e/m, and Planck's constant are all light-sensitive.
|-
|Mar 29
| Same as Mar 22
| Same as Mar 29
|
|-
|Apr 5
| [[Compton Scattering]]: Yankang

[[Electron Diffraction]]: Carter

[[Ratio of e/m]]: Adam

[[Franck-Hertz]]: (Wesley)

[[Electron Spin Resonance]]: (Kevin)
| [[Compton Scattering]]: Nicholas

[[Electron Diffraction]]: (Ben)

[[Planck's Constant]]: Erika
| Compton Scattering and Electron Diffraction will be shared between sections.
Names in (parentheses) are tentative.

[[Acoustic Impedance Spectroscopy]] and [[Charge of the Electron]] may also be available by Apr 5.

|-
|Apr 12
| Same as Apr 5
| Same as Apr 5
|
|-
|Apr 19
|
|
|
|-
|Apr 26
|
|
|
|-
|May 3
|
|
|
|-
|May 10
|
|
| ''Finals Week''
|}

== Course Schedule ==

{| class="wikitable"
|+
|-
|Date
|Lecture
|Assignments
|Notes
|-
|''Jan 18''
| none
|
| ''MLK Day''
|-
|Jan 25
| [https://ghz.unm.edu/education/juniorlab_pdfs/lectures_sp2021/lecture01.pdf Lecture 1]
| Read syllabus, complete pre-class survey and [[Required_Safety_Trainings]]
|
|-
|Feb 1
| [https://ghz.unm.edu/education/juniorlab_pdfs/lectures_sp2021/lecture02.pdf Lecture 2]
| Read through [https://ghz.unm.edu/education/juniorlab_pdfs/labnotebook_gradingrubric.pdf lab notebook grading rubric], example lab notebooks (links in lecture), review [https://ghz.unm.edu/education/juniorlab_pdfs/uncertainty.pdf Uncertainty from Physics 1]
|
|-
|Feb 8
| [https://ghz.unm.edu/education/juniorlab_pdfs/lectures_sp2021/lecture03.pdf Lecture 3]
|
|
|-
|Feb 15
| [https://ghz.unm.edu/education/juniorlab_pdfs/lectures_sp2021/lecture04.pdf Lecture 4]
| Sign up for first talk with date and topic
|
|-
|Feb 22
| [https://ghz.unm.edu/education/juniorlab_pdfs/lectures_sp2021/lecture05.pdf Lecture 5]
| Read through lab report guidelines
|
|-
|Mar 1
| Ben (Balmer Series)

Carter (Balmer Series)

Yankang (Speed of Light)

Kevin (Poisson Statistics)

[https://ghz.unm.edu/education/juniorlab_pdfs/lectures_sp2021/lecture06.pdf Lecture 06]

| Email with choices for first advanced lab by Friday March 5 at noon
|
|-
|Mar 8
| Erika (Balmer Series)

Wesley (Balmer Series)

Adam (Balmer Series)

Nicholas (Speed of Light)

[https://ghz.unm.edu/education/juniorlab_pdfs/lectures_sp2021/lecture07.pdf Lecture 7]
|
|
|-
|''Mar 15''
|
|
| '' Spring Break''
|-
|Mar 22
|
|
|
|-
|Mar 29
|
|
|
|-
|Apr 5
|
|
|
|-
|Apr 12
|
|
|
|-
|Apr 19
|
|
|
|-
|Apr 26
|
|
|
|-
|May 3
|
|
|
|-
|May 10
|
|
| ''Finals Week''
|}

Schedule Spring 2021

2021-03-09T18:53:14Z

Juniorlab admin: /* Schedule of Experiments */

== Schedule of Experiments ==

{| class="wikitable"
|+ Experiment Schedule
|-
|Date
|Section 1 (Monday)
|Section 2 (Tuesday)
|Notes
|-
|''Jan 18''
|
|
| ''MLK Day''
|-
|Jan 25
| Oscilloscope: Yankang, Kevin, Carter
Chua Circuit Pt 1: Adam, Wesley
| Oscilloscope: Erika, Nicholas
Chua Circuit Pt 1: Ben
| '''Lab notebook due Feb 5'''
|-
|Feb 1
| '''IN-PERSON'''
''[[Speed of Light]]:'' Adam

''[[Poisson Statistics]]:'' Wesley

'''REMOTE'''

''[[Chuas Circuit]] Short:'' Yankang, Kevin, Carter
| '''IN-PERSON'''

''[[Speed of Light]]:'' Ben

''[[Balmer Series]]:'' Erika

'''REMOTE'''

''[[Chua Circuit]] Short:'' Nicholas
| Lab notebook due Wed Feb 10
|-
|Feb 8
| '''IN PERSON'''

''[[Balmer Series]]'': Carter

''[[Poisson Statistics]]'': Kevin

''[[Speed of Light]]'': Yankang

'''REMOTE'''

''[[Chua Circuit]] Pt 2'': Adam, Wesley

| '''IN PERSON'''

''[[Balmer Series]]'':

''[[Poisson Statistics]]'':

''[[Speed of Light]]'': Nicholas

'''REMOTE'''

''[[Chua Circuit]] Short'': Erika

''[[Chua Circuit]] Pt 2'': Ben

| Lab notebook due Wed Feb 17
|-
|Feb 15
| '''IN PERSON'''

''[[Balmer Series]]'': Wesley

''[[Poisson Statistics]]'': Adam

''[[Speed of Light]]'': Carter

'''REMOTE'''

''[[Poisson Statistics Pt 2]]'': Kevin

''[[Speed of Light Pt 2]]'': Yankang

| '''IN PERSON'''

''[[Balmer Series]]'': <s>Ben</s>

''[[Poisson Statistics]]'': <s>Erika</s>

''[[Speed of Light]]'':

'''REMOTE'''

''[[Speed of Light Pt 2]]:'' Nicholas, <ins>Ben</ins>

| Lab notebook due Wed Feb 24.

Re-arranged schedule due to snow day for Tuesday session
|-
|Feb 22
| '''IN PERSON'''

''[[Balmer Series]]'': Adam

''[[Poisson Statistics]]'': Yankang

''[[Speed of Light]]'': Kevin

'''REMOTE'''

''[[Poisson Statistics Pt 2]]'': Wesley

''[[Speed of Light Pt 2]]'': Carter

| '''IN PERSON'''

''[[Balmer Series]]'': <ins>Ben</ins>

''[[Poisson Statistics]]'': Nicholas

''[[Speed of Light]]'': <ins>Erika</ins>

'''REMOTE'''

''[[Poisson Statistics Pt 2]]:'' <s>Erika</s>

''[[Speed of Light Pt 2]]:'' <s>Ben</s>

| Lab notebook due Wed Mar 3
|-
|Mar 1
| '''IN PERSON'''

''[[Balmer Series]]'': Kevin

''[[Poisson Statistics]]'': Carter

''[[Speed of Light]]'': Wesley

'''REMOTE'''

''[[Poisson Statistics Pt 2]]:'' Adam, Yankang

''[[Speed of Light Pt 2]]:''

| '''IN PERSON'''

''[[Balmer Series]]'':

''[[Poisson Statistics]]'': Ben

''[[Speed of Light]]'': <s>Erika</s>

'''REMOTE'''

''[[Poisson Statistics Pt 2]]:'' Nicholas

''[[Speed of Light Pt 2]]:'' <ins>Erika</ins>

| Lab notebook due Wed Mar 10
|-
|Mar 8
| '''IN PERSON'''

''[[Balmer Series]]'': Yankang

''[[Poisson Statistics]]'': <ins>Erika</ins>

''[[Speed of Light]]'':

'''REMOTE'''

''[[Poisson Statistics Pt 2]]:'' Carter

''[[Speed of Light Pt 2]]:'' Adam, Kevin, Wesley

| '''IN PERSON'''

''[[Balmer Series]]'': Nicholas

''[[Poisson Statistics]]'':

''[[Speed of Light]]'':

'''REMOTE'''

''[[Poisson Statistics Pt 2]]:'' Ben, <ins>Erika</ins>

''[[Speed of Light Pt 2]]:'' <s>Erika</s>

| Lab notebook due Wed Mar 24 (after spring break)
|-
|''Mar 15''
| All experiments in person after spring break
|
| '' Spring Break''
|-
|Mar 22
| [[Compton Scattering]]: Adam

[[Electron Diffraction]]: Kevin

[[Ratio of e/m]]: Wesley

[[Planck's Constant]]: Yankang

[[Electron Spin Resonance]]: Carter

| [[Compton Scattering]]: Erika

[[Electron Diffraction]]: Nicholas

[[Franck-Hertz]]: Ben
| Compton Scattering and Electron Diffraction will be shared between sections.
Electron Diffraction, Ratio of e/m, and Planck's constant are all light-sensitive.
|-
|Mar 29
| Same as Mar 22
| Same as Mar 29
|
|-
|Apr 5
| [[Compton Scattering]]: Yankang

[[Electron Diffraction]]: Carter

[[Ratio of e/m]]: Adam

[[Franck-Hertz]]: (Wesley)

[[Electron Spin Resonance]]: (Kevin)
| [[Compton Scattering]]: Nicholas

[[Electron Diffraction]]: (Ben)

[[Planck's Constant]]: Erika
| Compton Scattering and Electron Diffraction will be shared between sections.
Names in (parentheses) are tentative.

[[Acoustic Impedance Spectroscopy]] and [[Charge of Electron]] may also be available by Apr 5.

|-
|Apr 12
| Same as Apr 5
| Same as Apr 5
|
|-
|Apr 19
|
|
|
|-
|Apr 26
|
|
|
|-
|May 3
|
|
|
|-
|May 10
|
|
| ''Finals Week''
|}

== Course Schedule ==

{| class="wikitable"
|+
|-
|Date
|Lecture
|Assignments
|Notes
|-
|''Jan 18''
| none
|
| ''MLK Day''
|-
|Jan 25
| [https://ghz.unm.edu/education/juniorlab_pdfs/lectures_sp2021/lecture01.pdf Lecture 1]
| Read syllabus, complete pre-class survey and [[Required_Safety_Trainings]]
|
|-
|Feb 1
| [https://ghz.unm.edu/education/juniorlab_pdfs/lectures_sp2021/lecture02.pdf Lecture 2]
| Read through [https://ghz.unm.edu/education/juniorlab_pdfs/labnotebook_gradingrubric.pdf lab notebook grading rubric], example lab notebooks (links in lecture), review [https://ghz.unm.edu/education/juniorlab_pdfs/uncertainty.pdf Uncertainty from Physics 1]
|
|-
|Feb 8
| [https://ghz.unm.edu/education/juniorlab_pdfs/lectures_sp2021/lecture03.pdf Lecture 3]
|
|
|-
|Feb 15
| [https://ghz.unm.edu/education/juniorlab_pdfs/lectures_sp2021/lecture04.pdf Lecture 4]
| Sign up for first talk with date and topic
|
|-
|Feb 22
| [https://ghz.unm.edu/education/juniorlab_pdfs/lectures_sp2021/lecture05.pdf Lecture 5]
| Read through lab report guidelines
|
|-
|Mar 1
| Ben (Balmer Series)

Carter (Balmer Series)

Yankang (Speed of Light)

Kevin (Poisson Statistics)

[https://ghz.unm.edu/education/juniorlab_pdfs/lectures_sp2021/lecture06.pdf Lecture 06]

| Email with choices for first advanced lab by Friday March 5 at noon
|
|-
|Mar 8
| Erika (Balmer Series)

Wesley (Balmer Series)

Adam (Balmer Series)

Nicholas (Speed of Light)

[https://ghz.unm.edu/education/juniorlab_pdfs/lectures_sp2021/lecture07.pdf Lecture 7]
|
|
|-
|''Mar 15''
|
|
| '' Spring Break''
|-
|Mar 22
|
|
|
|-
|Mar 29
|
|
|
|-
|Apr 5
|
|
|
|-
|Apr 12
|
|
|
|-
|Apr 19
|
|
|
|-
|Apr 26
|
|
|
|-
|May 3
|
|
|
|-
|May 10
|
|
| ''Finals Week''
|}

Schedule Spring 2021

2021-03-08T19:44:12Z

Juniorlab admin: /* Course Schedule */

Computer Resources

2021-03-01T22:19:55Z

Juniorlab admin:

{| class="wikitable"
! scope="col" style="width: 100px;" | Number on the Computer
! scope="col" style="width: 100px;" | RAM
! scope="col" style="width: 100px;" | Hard disk
! scope="col" style="width: 100px;" | Processor
! scope="col" style="width: 250px;" | Os installed
! scope="col" style="width: 250px;" | Notes
|-
| 18 || 2 GB || 75 GB || Intel Core 2 Duo || Linux Mint 19.3 (Tricia) - Cinnamon Desktop || Analysis computer
|-
| 20 || 2 GB || 75 GB || Intel Core 2 Duo || Windows 7.0 || [[Franck-Hertz]] computer
|-
| 25 || 2 GB || 75 GB || Intel Core 2 Duo || Linux Mint 19.3 || Analysis computer
|-
|30 || 2 GB || 75 GB || Intel Core 2 Duo || Linux Mint 19.3 || Analysis computer
|-
|31 || 2 GB || 75 GB || Intel Core 2 Duo || Linux Mint 19.3 || Analysis computer
|-
|Dell Intel i5 || 8 GB || 1 TB || Intel Core 5 || Windows 10.0 || Computer for [[Acoustic Impedance Spectroscopy]], [[Poisson Statistics]], [[Compton Scattering]]
|-
|Jr Tower 1 (SN B5DSM83) || 16 GB || 1 Tb || Precision 3640 || Windows 10 || Matlab set up for [[Acoustic Impedance Spectroscopy]]
|-
|Jr Tower 2 (SN B5DRM83) || 16 GB || 1 Tb || Precision 3640 || Windows 10 || USX Installed for [[Poisson Statistics]], [[Compton Scattering]]
|-
|Jr Tower 3 (SN B5DQM83) || 16 GB || 1 Tb || Precision 3640 || Windows 10 || Labview set up for Franck-Hertz
|-

Schedule Spring 2021

2021-03-01T19:55:58Z

Juniorlab admin: /* Course Schedule */

Schedule Spring 2021

2021-03-01T19:54:30Z

Juniorlab admin: /* Course Schedule */

Schedule Spring 2021

2021-03-01T15:13:08Z

Juniorlab admin: /* Course Schedule */

Schedule Spring 2021

2021-02-23T19:37:15Z

Juniorlab admin: /* Course Schedule */