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Department of Physics

3.2mm HXY DBB H13857

Probe description: PH MASDVT850W6 BL3.2 X/Y/H DBB

Operating instructions

Additional components: Stop circuit coil 6.5 turns; Stop circuit coil 4.5 turns; Stop circuit coil 2.5 turns

Coil with 6.5 turns X-range MHz
(ranges on bench)

Y-range MHz
(ranges on bench)
λ/2+22pF serial C 177-263 77-110/105-163
λ/4+22pF serial C 125-214 67-106/72-134
Coil with 4.5 turns X-range MHz
(ranges on bench)		 Y-range MHz
(ranges on bench)
λ/2+22pF serial C 162-263 80-129/116-179
λ/4+22pF serial C 145-214 76-121/78-140
Coil with 2.5 turns X-range MHz
(ranges on bench)		 Y-range MHz
(ranges on bench)
λ/2+22pF serial C 190-268 117-164/131-196
λ/4+22pF serial C 180-217 85-143/86-151

 

Probe Test Results (Stated 90o pulse lengths are the best achieved during installation. To reduce risk of damage to the probes, facility users should use slightly lower RF nutation frequencies (i.e. longer 90o pulse lengths) were possible. Please discuss with the facility manager appropriate RF nutation frequencies for your experiments.)

With 10pF serial C +parallel C:

Nuc 90o pulse 

 Pulse power
level (db)

  Pulse
power (W)		 Configuration
 		 Sample Remarks
79Br 3 -2 464 λ/4 + 4.5 coil+ 10pF +parallel C in  KBr  
13C 3.2 -1 384 λ/4 + 4.5 coil+ 10pF +parallel C in  Adamantane  lw 1.2
1H 3 1.3 132 λ/4 + 4.5 coil+ 10pF +parallel C in  Adamantane

 
13C 3.85 0 305 λ/4 + 4.5 coil+ 10pF +parallel C in Glycine (CP) S/N 70 (ns=4)
15N 5.5 -1.5 495 λ/4 + 4.5 coil+ 10pF +parallel C in Glycine (CP) S/N 9 (ns=4)
1H 2.18 -0.9 220 λ/4 + 4.5 coil+ 10pF +parallel C in Glycine  

 

without 10pF serial C +parallel C:

Nuc 90o pulse 

 Pulse power
level (db)

  Pulse
power (W)		 Configuration
 		 Sample Remarks
13C 3.7 0.83 252 λ/2+ 2.5 coil  Glycine (CP) S/N 76 (ns=4)
1H 2.2 -0.9 220 λ/2+ 2.5 coil  Glycine (CP)

 
29Si 5.6 -0.88 600 λ/2 + 2.5 coil Si-Grease  

 

Triple resonance combination tested

T_b - tested by Bruker

T_u - tested by a user

* bench tests indicate should be possible

insert X-nucleus Y - nucleus
31P 11B 23Na 27Al 13C 29Si 2H 17O   11B 23Na 27Al 13C 29Si 2H 17O 15N 35Cl 14N 25Mg 39K
Coil with 6.5 turns λ/2     * * *                     * * *      
Coil with 6.5 turns λ/4         * * *                 * * *      
Coil with 4.5 turns λ/2     * * * *                 * * * *      
Coil with 4.5 turns λ/4         T_b *                   * T_b        
Coil with 2.5 turns λ/2     * * T_b                 T_b *            
Coil with 2.5 turns λ/4         *                   * * *