Light Source Serial Numbers and Histories

Th-Ne?

Th-Ar Daily

Photron

HJE0762

New lamp purchased by KPF? (see notes below)

Th-Ar

Th-Ar Gold

Photron

HNC0486

Jerry’s older, now-sacred-to-KPF lamp (see notes below)

U-Ne

U-Ne Daily

Photron

HRG0309

New lamp purchased by KPF

U-Ne

U-Ne Gold

Photron

HRG0308

New lamp purchased by KPF

(add information about Th-Ne lamps)

Th-Ar

Th-Ar Daily

Green Scientific

G858A

L82979

New lamp purchased by KPF

• Installed, replaced within 3 days, broken.

Th-Ar

Th-Ar Daily

Green Scientific

G858A

L82890

New lamp purchased by KPF

• Notes on use history are not clear. Installed Dec 15, 2022 (daily or gold, not clear).

• Pulled from Gold on Feb 22, 2023 (Gold power supply not working), installed as Daily lamp. Verified working.

Th-Ar

Th-Ar Daily

Green Scientific

G858A

L82884

New lamp purchased by KPF

• Installed on Feb 15, 2023, no flux visible.

Tungsten-Halogen

Thorlabs

SLS201L

No serial number is visible on enclosure exterior. Might be one on lamp itself, but I (SG) did not take the unit apart to look at lamp. Something to check if lamp burns out.

Tungsten-Halogen

Thorlabs

SLS201L

(add etalon’s super-K information)

Aug 26, 2022

Installed HJE0762 as ThAr Daily

Aug 26, 2022

Installed HNC0486 as ThAr Gold

Aug 26, 2022

Installed HRG0309 as UNe Daily

Aug 26, 2022

Installed HRG0308 as UNe Gold

(add Cal Unit broadband lamp information)

(add Flat Field Fiber broadband lamp information)

(add etalon’s super-K information)

Dec 12, 2022

Removed HNC0486 as ThAr Gold
Moved HJE0762 from ThAr Daily to ThAr Gold (ThAr Daily supply does not work)
Installed L82979 as ThAr Daily

Dec 15, 2022

Removed HJE0762 from ThAr Daily (broken)
Installed L82890 as ThAr Daily

Feb 11, 2023

ThAr Daily (please verify serial number) reported as having substantially reduced flux, probably starting around Jan 26 2023.

Feb 15, 2023

Brett installed Green Scientific L82884 in Th-Ar Daily. No flux seen in cals during subsequent days.

Feb 21, 2023

• Serial of lamp pulled from Th Daily (no serial on it, serial is on box)

• Serial of lamp in Th Gold is L82890

• Moved L82890 to Daily as test

  • 13 ma showing on on needle on power supply

  • Keyword TH_DAILY_AMPS shows 223ma

  • PDU shows 18W draw

  • Can see light on summit from lamp (not fully inserted)

• Brett put GS lamp from Th_Daily (presumably L82884) in Th Gold

  • Brett also wrote s/n on that lamp to help in future troubleshooting of that power supply (we’re presuming the notes from Feb 15 are correct)

(Note: the kpflamps.TH_DAILY_SN and kpflamps.TH_GOLD_SN keywords were not updated)

April 10, 2023

Grant Hill made the change:

• L82890 came out (of Th_Daily)

• L82945 went in

(Note: the kpflamps.TH_DAILY_SN keyword was not updated until May 9)

May 3, 2023

GS L82903 in to Th_GOLD

(Note: the kpflamps.TH_GOLD_SN keyword was not updated until May 9)